羟基吡喃,

(2s,3r,4s,5s,6r-2-乙氧基-6-羟甲基-四氢化吡喃-3,4,5-三醇
3s,4s,5s,6s-3,4,5-三羟基-6(5-甲基-2-丙-2-基环己基)氧基四氢吡喃
(3α,5β,12α-3,12-二羟基胆烷-24-酸(1r,3s,5r,6r,9r,11r,15s,16r
13-二甲基-3(2r,3r,4r,5r,6s-3,4,5-三羟基-6-甲基四氢吡喃-2-基]
(4s-4-乙基-4-羟基-1h-吡喃并[3,4-c]吡啶-3,8(4h,7h-二酮